I'm so very sorry for you and the years you put into having a relationship with this woman. I know how terrible it feels to be lied to, manipulated and stabbed in the back. It's devastating and I really do feel bad for you. It's unthinkable what she did and totally unpredictable. I don't understand how she could lead you on for 10 years and go back to him. I hope you have the strength never to go back to her again. She will likely try you know. Stay strong and get as far away from her as possible.